Caster for chairs.



F. ARNETT.

EASTER FOB CHAIRS. APPLICATION man IULY a. ma.

1,249, 32, Y Patented min, 191?.

a i v 2 SHEETS-SHEET I- F. ARNETT.

CASTER FOR CHAlRS.

APPLICATION FILED JULY 1.1915.

Patented Dec. 11 1917'.

2 SHEEIS-SHEET 2- 7 l IIJIMIJ ltd ll ti did titl

titi

UNITED STATES A FRANK ARNETT, or

omeseo. ILLINOIS.

EASTER FOR CHAIRS.

Specification of Letters Patent.

Application as rui 915. SeriatNo. 37,487.

To all whom it may concern:

Be it known that I, FRANK AnNn'r'r, a citizen of the United States, anda resident of the city of Chicago, county of Cook, and State ofIllinois, have invented certain new and useful Improvements in Castersfor "Chairs, of which the following is a speoification.

My invention relates to improvements in chairs, and particularly tocasters.

The object of my invention is to provide an improved caster for chairswhich shall constitute a cushioning element for the same. A furtherobject of my invention is to provide a caster as mentioned which may bereadily applied to the leg of a chair and of such construction thataccess may be readily had to the interior thereof for the purpose ofrepair. A further object of my invention is to provide a device asmentioned which will not weaken the leg of a chair by applicationthereto.

"Other objects will appear hereinafter.

The invention consists in the combinations and arrangements of partshereinafter described and claimed.

The invention will be best understood by reference to the accompanyingdrawings forming a part of this specification, and in which,

Figure 1 is a substantially central vertical section of a chairembodying the invention, Fig. 2 is a top plan view of the chair,

Fig. 3 is a section taken on line- 02m of Fig. 1,

Fig. 4 is an enlarged detail central section of the lower end portion ofone of the legs of the chair, and

Fig. 5 is an enlarged section taken on line g -y of Fig. 4.

Referring to the drawings 2 indicates the leg of a chair, the detailconstruction of said chair forming no part of the present application,the same being covered in a divisional application.

Arranged at the lower end of each of the legs 2 is a cup 23 whichloosely embraces the leg, a helical compression spring 24 beinginterposed between the bottom of the cup and the under surface of theleg, as

' shown in Fig. 4. The under side of each leg is recessed, as shown, inorder to acc0mmodate the upper end portion of the corresponding spring.Securing devices 25 and 2d cooperate with the respective. ends of eachspring for fastening the same to the corresponding leg and cup 23.Projecting laterally from each leg adjacent the lower end thereof is alug or pin 27 which loosely on gages in a vertically extending elongatedslot 28 provided in the side of the corresponding cup for limitingrelative vertical movement thereof. With this arrangement, it will beseen that the chair in reality is supported by the springs 24, which ofcourse, results in a yielding support for the chair, hence conducing tothe ease and comfort of the occupant. I

One side 29 of each cup 23 is hinged as at 30, as shown in Fig. 5, so asto permit of ready access being gained to the interior of the cup forattachment or adjustment of the spring or for any other reason. A springlatch 31 cooperates with each of the cup members 29 for holding the samein closed or operative position. Mounted at the under side of each cup29 is a roller or caster 32.

While I have illustrated and described the preferred form ofconstruction for carrying my invention into effect, this is capable ofvariation and modification without departing fro-1n the spirit of theinvention. 1, therefore, do not wish to be limited to the precisedetails of construction set forth, but desire to avail myself of suchvariations and modifications as come within the scope of the appendedclaims.

Having described my invention what I claim as new and desire to secureby Letters Patent is:

1. A chair leg comprising a body; a cup inclosing the lower end of saidbody and vertically movable thereon; and a compres sion springinterposed between. the bottom of said cup and the under surface of saidbody, the under side of said body being recessed for the reception ofthe upper end portion of said spring, substantially as described.

2. A chair leg comprising a body; a cup inclosing the lower end of saidbody and vertically movable thereon; and a compression spring interposedbetween the bottom of said cup and the under surface of said body, oneside of said cup being hingedly mounted to permit of access being gainedto the interior of said cup, substantially as described.

3. A chair leg comprising a body; a cup inclosing the lower end of saidbody and vertically movable thereon; a compression Patented Dec.11,1917.

FRANK ARNETT.

spring interposed between the bottom of said cup and the under surfaceof said body, one side of said cup being hingedly mounted to permit ofaccess being gained to the interior of said cup; and a detent forreleasably locking said side of the cup in closed position,substantially as described.

Witnesses:

JOSHUA R. H. PoTTs, B. G. RICHARDS.

fifiopies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents, Washington, D. G.

